package com.bytz.config.mvc;

import com.bytz.common.api.vo.Result;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

@Component
@RestControllerAdvice
public class ResultInterceptor implements ResponseBodyAdvice<Result> {

    @Override
    public boolean supports(MethodParameter returnType, Class converterType) {
        return returnType.getParameterType().isAssignableFrom(Result.class);
    }

    @Override
    public Result beforeBodyWrite(Result body, MethodParameter returnType, MediaType selectedContentType, Class<? extends HttpMessageConverter<?>> selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
        if (body != null && body.getHttpStatus() != null) {
            response.setStatusCode(body.getHttpStatus());
        }

        return body;
    }
}
